SOT shift report 2001-08-31 L771 Start at 2001:243:12:38 GMT = 2001 Aug 31 08:38 am EDT End 11:00 am EDT SOT Lead Ed Kellogg PLAN ---- CAL-ER 2001:243:10:09 then OBSID 01577 00 M31 NUCLEUS 2001:243:13:24:31.348 5.0 ACIS-I NONE long observation, followed by two shorter observations, will probe the variability of the nucleus on short timescales in order to set a limit to the size of the emitting region. RADIATION SUMMARY Observed Limit ----------------- -------- ----- ACE 2 hr fluence 3.2e6 3.6e8. GOES-8/P2 4-9 MeV protons `P4GM' 0.1 95 GOES-8/P5 40-80 MeV protons `P41GM' 0.01 0.78 *ACIS* Orbital fluence (since perigee) 0 1.0e9. EPHIN rates (cts/cm^2-s-sr) at last comm. OBSERVED RADMON limit ---------------------------------------- -------- ----------- E1300 (electrons, 2.64 - 6.18 MeV): 80 SMALL 10.0 P4GM (protons, 5.0 - 8.3 MeV): 65907 " 300.0 P41GM (protons, 41 - 53 MeV): 0.4 " 8.47 ACIS focal plane temperature -114.1 at 4:14 am EDT. REAL TIME OBSERVATIONS GMT OBSID ----------------------------------------------------------------- - Notes from 9 am meeting ------------------------ OPS: Passes 3 over the last day(s) Dumps Problem with dumps. JPL was not able to transmit ~3.5 hrs of data. We don't know if JPL will be able to send us those data yet, nor if we still have it onboard on SSR-A. We will work on this today in an hour or so. Data loss ?? Load is good -> - CAPs 664: switch to SSR-B Next passes 2015, 0315 MP: SEP03 load was approved. SEP10 laod email review today. S/C: Awaiting latest eng'ng. data, because of data transmission problem; we need it for analyzing the last eclipse, which happened last night. Gyro 1 is still noisy but stable. The plan for the Moon observation is set. We will develop a procedure to execute a manual maneuver if there is a problem with the Moon light on the ACIS filter. GOT: - DATA: - SOT: Proton flux is low. Several small CMEs observed yesterday. Prediction for CME today: 0-20%. MEETINGS -------- Data ---- On colossus (/dsops/GOT/input), - 2001_242_0258_242_1003_Dump_EM_79507.gz Evaluation of QL data --------------------- Target: OBSID SI SOT Eval. ---------------- -- --------- A1758:obs2213 ACIS-S OK RX J1350.0+6007:obs2229 ACIS-I nothing obvious NOTES/ISSUES/PROBLEMS --------------------- We need to determine whether we have lost any data at the JPL CDR. Chandra's state was: (http://cxc.harvard.edu/mta_days/MIRROR/Snap/snap.cgi) --------------------------------------------------------------------------- UTC 2001:243:08:17:18 (Aug31) f_ACE 7.84e+02 F_CRM 0.00e+00 Kp 3.3 R km 38696A OBT 2001:243:08:14:40 CTUVCDU 4358655 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 115632880.14 ONLVCDU 4358640 OBC Errs 0 OBSID 61488 EPState SUN SIM TTpos -99616 HETG Angle 79.84 PCADMODE NPNT RA 358.998 Bus V 30.08 SIM FApos -535 LETG Angle 77.96 PCONTROL NPNT Dec 10.001 Bus I 33.30 AOFSTAR GUID Roll 133.156 ACA Object SSSSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang 6.59 Yaw Rate -0.13 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -1.97 Pitch Rate -0.01 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.08 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -49.62 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta -49.80 Batt 2 SOC 100.00% ACIS Stat7-0 67 Avg OBA Temp 50.81 SA Resolv 153.28 Batt 3 SOC 100.00% Cold Rad -120.7 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -79.6 OBA Trng Fault NFLT +Y SA Amps 16.25 RadMon DISA HRMA power 77.10 SCS 128 INAC -Y SA Amps 16.64 EPHIN Geom SMAL OBA power 132.60 SCS 129 ACT +Y SA Temp 113.58 E150 1333073.2 SCS 130 ACT -Y SA Temp 113.89 E300 70466.9 Roll Mom. 8.210 SCS 107 INAC E1300 80.3 Pitch Mom. 1.314 UpL Cmd Acc 20884 EPH A-Leak 1.0200 P4GM 65907.9 Yaw Mom. -8.867 Cmd Rej A 250 EPH B-Leak 0.1840 P41GM 0.4 Explanation Current Data: UTC 2001:243:12:55:34 (Aug31) f_ACE 4.10e+02 F_CRM 0.00e+00 Kp 2.7 R km 72865A Currently scheduled FPSI, OTG : HRC-S NONE Costello Kp : 2.67 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 4.10e+02 Orbit Start Time : 2001:243:05:39:01 Geocentric Distance (km), Orbit Leg : 72653 A CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 3.78796000000e+04 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.00000000000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.28405283000e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 0.00000000000e+00 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Aug_31_2001_L771.txt